There's a credible bug report for Audacity 1.3.12 crashing when the
user clicks on the Mixer Board.
Windows 7, 64-bit.
I don't have Windows 7 and I can't reproduce the issue. Can anyone
else reproduce the problem?
More details here: http://forum.audacityteam.org/viewtopic.php?f=16&t=54024
Steve